User talk:Haylee.gordon

transition metals (1st series)
Uses The bonding of atoms within transition metals is very strong. As a result, they are very strong metals that tend to have a high boiling point, high melting point and a high density. Transition metals also have a wealth of electrons to carry energy, and thus prove effective in conducting electricity. Transition metals are commonly used to create alloys, which are combinations of metals and/or non-metallic substances. Many well-known substances are alloys made of transition metals. Iron is combined with carbon and a variety of other substances to make steel, and the inclusion of chromium makes it stainless steel. Copper makes up several well-known alloys: it is mixed with zinc to create brass, combined with tin to form bronze and mixed with nickel to form cupro-nickel, which is often made into coins. Some transition metals and compounds of transition metals are used as catalysts in chemical reactions to speed up the rate of reaction without adding any reactive properties themselves. For example, vegetable oils are turned into saturated fats that take longer to melt by way of hydrogenation. Nickel is used as the catalyst so that hydrogen can effectively join a carbon-carbon double bond.

Properties due to configuration Oxidation states The oxidation state is a measure of the degree of oxidation of an atom in a substance. Different oxidation states cause colour change in transitionb metals which can be related bacl to the electron configuration of that specific element. As the oxidation state of the metal increases, so also does the amount of splitting of the d orbitals. Changes of oxidation state therefore change the colour of the light absorbed, and so the colour of the light you see.

Complex compounds Complex compounds are... Complex ions containing transition metals are usually coloured, whereas the similar ions from non-transition metals aren't. That suggests that the partly filled d orbitals must be involved in generating the colour in some way. Remembering that transition metals are defined as having partly filled d orbitals, this means that the colour change is directly related back to the electron configuration and the filling of the 'd' shell.

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